'; echo ''; /** * 添加URL到站点地图 * @param string $loc URL地址 * @param string $lastmod 最后修改时间 (YYYY-MM-DD) * @param string $changefreq 更改频率 * @param float $priority 优先级 (0.0-1.0) */ function addUrl($loc, $lastmod = null, $changefreq = 'daily', $priority = 0.5) { echo ' '; echo '' . htmlspecialchars($loc) . ''; if ($lastmod) { echo '' . htmlspecialchars($lastmod) . ''; } echo '' . htmlspecialchars($changefreq) . ''; echo '' . htmlspecialchars($priority) . ''; echo ' '; } // 1. 首页及静态页面（高优先级） addUrl($baseUrl, date('Y-m-d'), 'daily', 1.0); addUrl($baseUrl . 'about.php', date('Y-m-d'), 'weekly', 0.8); addUrl($baseUrl . 'news.php', date('Y-m-d'), 'daily', 0.8); addUrl($baseUrl . 'policies.php', date('Y-m-d'), 'weekly', 0.8); addUrl($baseUrl . 'projects.php', date('Y-m-d'), 'weekly', 0.8); addUrl($baseUrl . 'contact.php', date('Y-m-d'), 'monthly', 0.7); // 2. 新闻详情页 try { $newsStmt = $pdo->query("SELECT slug, publish_date FROM news WHERE is_published = 1 ORDER BY publish_date DESC"); while ($news = $newsStmt->fetch()) { $url = $baseUrl . 'news_detail.php?slug=' . $news['slug']; $lastmod = date('Y-m-d', strtotime($news['publish_date'])); addUrl($url, $lastmod, 'weekly', 0.6); } } catch (PDOException $e) { // 错误处理，不影响其他内容生成 } // 3. 政策详情页 try { $policyStmt = $pdo->query("SELECT slug, issue_date FROM policies WHERE is_published = 1 ORDER BY issue_date DESC"); while ($policy = $policyStmt->fetch()) { $url = $baseUrl . 'policy_detail.php?slug=' . $policy['slug']; $lastmod = date('Y-m-d', strtotime($policy['issue_date'])); addUrl($url, $lastmod, 'monthly', 0.6); } } catch (PDOException $e) { // 错误处理 } // 4. 项目详情页 try { $projectStmt = $pdo->query("SELECT slug, updated_at FROM projects WHERE is_published = 1 ORDER BY updated_at DESC"); while ($project = $projectStmt->fetch()) { $url = $baseUrl . 'project_detail.php?slug=' . $project['slug']; $lastmod = date('Y-m-d', strtotime($project['updated_at'])); addUrl($url, $lastmod, 'monthly', 0.5); } } catch (PDOException $e) { // 错误处理 } echo ''; ?>